Discovery
launched into the evening sky over Florida on Oct. 11,
2000, to start the 100th mission of the space shuttle
program. Mission
videos are available in the Gallery.

100th
Space Shuttle Flight
STS-92 took its place in history Oct. 11, 2000, when Space Shuttle
Discovery launched from the Kennedy Space Center, Fla., to
begin the 100th flight of the space shuttle program.

During
STS-92, the crew delivered and installed the Z1 Truss and
Pressurized Mating Adapter 3 to the International Space Station.

Onboard
were seven astronauts -- Commander Brian Duffy, Pilot Pam
Melroy and Mission Specialists Leroy Chiao, Bill McArthur,
Koichi Wakata, Jeff Wisoff and Mike Lopez-Alegria. Wakata
represented the National Space Development Agency of Japan,
or NASDA, for the second time in his career. During STS-72
in 1996, he became the first NASDA astronaut to fly as a mission
specialist aboard the space shuttle.

During
the fourth space walk of STS-92, Astronauts Jeff Wisoff
and Michael Lopez-Alegria each took a turn testing Simplified
Aid for EVA Rescue also known as SAFER, which is a small
rescue backpack that could help a drifting astronaut regain
the safety of the spacecraft.

Crew
Installs Space Station Elements During Space Walks
STS-92 crewmembers conducted four space walks on the outside of the
docked complex. During consecutive days beginning Oct. 15,
2000, space walkers conducted the complex, demanding tasks
that were required for installation of the Z1 Truss and Pressurized
Mating Adapter 3 onto the station's Unity module.

Mission
Specialists Leroy Chiao and Bill McArthur performed the first
and third excursions. Mission Specialists Jeff Wisoff and
Michael Lopez-Alegria performed the second and fourth. Total
space walk time for the mission was 27 hours, 19 minutes.

Mission
3A Additions

During
the International Space Station 3A mission, the following
elements were added:

Integrated
Truss Structure Z1

an
early exterior framework to allow first U.S. solar arrays
on Flight 4A to be temporarily installed on Unity for
early power

Ku-band
Communication System

supports
early science capability and U.S. television on 6A

Control
Moment Gyros

provide
non-propulsive (electrically powered) attitude control
when activated on 5A